Safran Electrical & Power

Safran Helicopter Engines

Julien Marc Nicolas Rambaud

David Bernard Martin Lemay

Alexis Renotte

Christophe Castelli

Stéphane Meyer Beddok

Guillaume Porte

The present invention relates to a device () for controlling an electric aircraft-propelling assembly, said propelling assembly comprising a propeller () and at least one electric motor () that is powered by an electric supply voltage and that delivers a torque and a rotation speed to drive the propeller (). The control device () comprises at least a unit () for measuring an electric supply voltage, and a control unit () suitable for making a signal delivered to the electric motor vary as a function of said electric supply voltage, with a view to making the rotation speed of the propeller vary.

Device for controlling a least one electric motor for an aircraft-propelling assembly

A cooling system for a drive device with several electric machines, the cooling system including a hydraulic circuit for a coolant including a cooling part in a gearbox of the drive device for cooling the gearbox, and an air/coolant heat exchanger including cooling walls forming channels for circulating coolant for the cooling thereof, an air cooling circuit including a plurality of fans, rotationally coupled to the gearbox, a cooling part between the cooling walls of the air/liquid heat exchanger, wherein the air sucked in and propelled by the fans circulates by sweeping over the cooling walls in order to cool them.

System for cooling a drive device with several electric machines

Growing community of inventors

MOISSY-CRAMAYEL, France

Julien Marc Nicolas Rambaud